909173

Sodium thiosulfate

free-flowing, Redi-Dri^™, ReagentPlus^®, 99%

• Linear Formula: Na₂S₂O₃
• CAS Number: 7772-98-7
• Molecular Weight: 158.11
• MDL number: MFCD00003499
• UNSPSC Code: 12352302
• NACRES: NA.21

Properties

• grade: anhydrous
• agency: suitable for EPA 601
• product line: ReagentPlus^®; Redi-Dri^™
• assay: 99%
• form: powder
• quality: free-flowing
• pH: 6-8.5 (20 °C, 50 g/L)
• SMILES string: [Na+].[Na+].[O-]S([O-])(=O)=S
• InChI: 1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChI key: AKHNMLFCWUSKQB-UHFFFAOYSA-L

Description

General description

Sodium thiosulfate (Na₂S₂O₃) can be obtained from Na₂S₂O₃.10H₂O by heating above 100 °C. It can be synthesized from sodium sulfate.

Application

Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes.

Sodium thiosulfate (Na₂S₂O₃) may be used in the following studies:

• Industrial synthesis of methylene blue.
• Quantitative estimation of elemental iodine by titrimetry.
• Detection of trace levels of cysteine by employing triangular silver nanoplates (TAg-NPs).

Redi-Dri^™ is an innovative packaging product line that helps eliminate clumping material by adding extra packaging process steps without any chemical additives, anti-clumping agents, or hydrophobic compounds. Redi Dri offers a more convenient and safer way to handle the products.

Other Notes

Redi-Dri

Go to Redi-Dri^™ Product Listing 217263

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable